9. The rate at which the value, V, of a painting changest years after it is completed is given by the function RV(t). 2 6t + 4t + 10 (in dollars/year), what is the net change in the value of the (a) If RV(t) painting from 1 year after it's completed to 4 years after it's completed? (b) If RV(t) = \6t + 2 (in dollars/year), give a lower estimate for the net change in the value of the painting from 1 year after it's completed to 3 years after it's completed using a Riemann sum with 6 rectangles.

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.